Synthesis of Dicationic Carbazole and 4'-Amino-(3,3'-bipyridine)-4-ol and the Spectral Characteristics of Carbazoles
作者:K. Wang、T. Li、X.M. Ye、P. Guo、T. Jia
DOI:10.14233/ajchem.2013.14356
日期:——
The dicationic carbazole compound, 3,6-dimethyl-3,6-diazacarbazole diiodide (8) was prepared with 3-bromopyridine as a starting material by a six-step synthesis. The intermediates and target compound were confirmed by IR, NMR and MS. Meanwhile, UV-visible and fluorescent characteristics of 3,6-diazacarbazole (7) and 3,6-dimethyl-3,6-diazacarbazole diiodide (8) were investigated. It was found that fluorescence decay over time of dicationic carbazole existed in low ionic strength and high ionic strength could stabilize the fluorescence of dicationic carbazole.
以 3-溴吡啶为起始原料,通过六步合成法制备了双阳离子咔唑化合物 3,6-二甲基-3,6-二氮杂咔唑二碘化物(8)。通过红外光谱、核磁共振和质谱分析确认了中间体和目标化合物。同时,研究了 3,6-二氮杂咔唑(7)和 3,6-二甲基-3,6-二氮杂咔唑二碘化物(8)的紫外可见光和荧光特性。结果发现,在低离子强度下,二icationic carbazole 的荧光随时间衰减,而高离子强度可稳定二icationic carbazole 的荧光。